每天读一篇英语小故事：Tuberculosis Still Kills

英语自学网

　　There are some “good” things about the disease of tuberculosis (TB). One is
that it can be cured. Another is that TB is not spread by shaking hands, sharing
dishes, or sharing clothing. Another is that people usually catch it only from
others that they are with constantly—such as family, friends, or coworkers. The
occasional cough or sneeze from a nearby stranger doesn't transmit TB.
        　　Many people think TB is rare, like bubonic plague or smallpox. Yet TB still
occurs worldwide, killing almost 2 million people a year! Most victims are young
or elderly, and live in developing countries. Yet even in developed countries,
TB is a killer. In the US, TB killed 650 people in 2005.
        　　Caused by bacteria, most forms of TB can be treated with antibiotics. The
antibiotics must be taken for weeks, however, before the victim completely
recovers. Ignoring doctor's orders, some victims stop taking their antibiotics
as soon as they start feeling better; they risk catching a stronger version of
TB in the future.
        　　TB usually attacks the lungs. Symptoms vary. But common symptoms include
fatigue, lots of coughing, loss of appetite, chest pain, and spitting up blood.
A simple skin test, followed if necessary by a chest x-ray, will determine if
active TB exists. If so, a doctor will prescribe antibiotics.
        　　More than a billion people have inactive TB. It becomes active and
life-threatening only when a person's immune system weakens because of aging or
a serious illness.